The admission control status for this upstream entry.
When this object is set to 'true', the upstream scheduler
will check the virtual reserved bandwidth remaining
before giving admission to this new SU. If there
is not enough reserved bandwidth to serve the SU's minimum
guaranteed bandwidth, the registration request will be
rejected.
This object is set to 'false' to disable admission control.
That is, there will be no checking for bandwidth capacity and
the upstream interface scheduler just admits SU registration
requests.